Hi,
There can be many reasons for trembling / tremors of the hands. It can be related to brain disorders (stroke- reduced blood supply, infections, genetic disorders), liver or kidney disorders or
hyperthyroidism (increase thyroid hormone). Besides there can be simple reasons like stress,anxiety,
depression or anemia (low
hemoglobin).
Not only this, tremors can even be drug/medicine induced and especially in your case- many asthma medicines like
salbutamol are known to cause tremors (you did not mention the names of the medicines you are taking).
I feel that first of all do some lifestyle changes. Reduce the intake of tea and coffee. Try to be relaxed. Go for some relaxation and hand muscle strengthening exercises especially related to your hands. Do get your asthma medications renewed to rule out that they are not responsible for tremors. If still the symptoms persist then you must go for some investigations like
complete blood count, CRP, thyroid hormone and sodium, potassium.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Milinda Gupta, Internal Medicine Specialist